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Stockholders' Equity Preferred stock (Details) (USD $)	12 Months Ended
Stockholders' Equity Preferred stock (Details) (USD $)	Dec. 31, 2011
Class of Stock [Line Items]
Common Stock, Voting Rights	.15
Preferred Stock, Shares Authorized	15,000,000
Preferred Stock, Par or Stated Value Per Share	$ 1.00
Rights [Member]
Class of Stock [Line Items]
Preferred Stock, Shares Authorized	2,000,000

- Definition

Face amount or stated value per share of nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer); generally not indicative of the fair market value per share.

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